Lamp for motor-vehicles and like services.



H. J. DEW.

LAMP FOR Moon VEHICLES AND UKE 35m/solis.'

APPLICATION FILED MAR. 15| 1915.

Patemed Apr. 3, 191i?,-b

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HENRY JOSEPH DEW, yor cHcnLTon-CUM-Eaimv, MANCHESTER, ENGLAND.

LAMP FOR MTORfVEHICLES AND LIKE SERVICES.

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To all 'whom a may concern.'

Be it known that I, HENRY JOSEPH DEW, a subject ofthe King of Great Britain and Ireland, and resident` of 51 High Lane, Chorlton-cum-Hardy, Manchester, in the county of Lancaster, England, have invented certain new and useful Improvements in Lamps for Motor-Vehicles and like Services, of which the followingis a specification.v

This invention relates tolamps and more particularly to the incandescent gas and like lamps employed upon motor andlike vehicles, its object being to provide improved means for securing the refiecting lens or Inirror in place so that the same may be readily removed and replaced in its correct position or a new mirror inserted without the necessity for the employment of special tools or skilled labor.

y invention comprises the combination with the reflecting lens or mirror, of a deta'chable ysecuring and positioning ring I explanatory drawing whereby the lens is held in` place in the lam and correctly positioned With relation t`o t e burner or source of light for reflecting' Referring to the accompanying 'sheet of s:k n Figure 1 is a side elevation with the lens securing means in section and Fig. 2 a sectional front elevation, of a lamp having the i. lens securing means constructed in accordance with my lnvention.

' body'a around the lens.

Thelsame reference letters in the two views indicate the same arts.

In'the illl'istrateiapplication 'of my invention, the interior of the back of the lamp is suitably shaped to receive an unmounted lens or mirror a' which is held in place by a ring like member Z) screwing into the lamp The intel-engaging faces of lens and ring are preferably tapered so that the act of screwing the ring 4into place also insures that the lens shall be correctly positioned for ray reflecting purposes has one portion of' its Specification of Letters late'nt,

4mirnnr having a tapered periphera forth.

Il l' 'it is only necessary to unscrew the securing ring, when the lens can be removed and a Patented Apr. 3, 191% Application ledl IMarch 15, 19165. Serial No. 84,380. I

new one inserted. Consider able econom A1n lamp maintenance is thereby e'ected. I de sired the lens may be mounted in a metal carrier, but/the latter, which serves as a, protecting cover'only, is not necessary.

Having now described my invention, whatA I claim as new and desire to secure byLetters Patent isz- A 1. In lamps for motor 'vehicles and llike services, in combination, a relectin vlens or edge, a ring nternally coned for positioning the lens and externally threaded for screwing into the lamp, tommy holes in said ring, and an elongated ing access to said tommy holes, as set forth.

'2. In lamps for motor vehicles and like services, in combination, an unmounted re-- lecting lens Vor mirror having a tapered peripheral edge, a recess in the interiorl of the back of the lamp shaped to receive said lens, packing material between said lens and slot in the lamp body for provid lamp, a ring coned for *positioning said lens and threaded forscrewing into the lamp, tommy holes in an Unthreaded part of said ring, and an elongated slot in the lamp body providing access to said tommy holes, as set In testimony whereof 'I have signed my name to this specification in the presenceof two subscribing witnesses.

HENRY JOSE-PH DEW. Witnesses ARTHUR HUGHEs, HILDA HUGHES. 

